IT Systems Administrator

Torrance, CA
Full Time
Contracts and Admin
Mid Level
Intellisense Systems, Inc. is a privately held, Southern California-based technology innovator with a proven track record of developing and deploying innovative products that successfully operate in the most extreme environments. We solve tough, mission-critical challenges for our customers in the aerospace, defense, and commercial markets, delivering the full data continuum from sensing and embedded processing to video integration, displays, and data/video recording and storage for airborne and ground vehicle platforms. Our portfolio also includes environmental and maritime sensing and smart power management systems, engineered to the highest levels of safety certification and built with embedded cybersecurity and advanced encryption capabilities.

We are seeking a self-motivated, experienced IT Systems Engineer to support and secure our hybrid Microsoft environment, including Azure Government and Microsoft 365 GCC High. This person will split their time between infrastructure and cybersecurity work and Tier II/III support and will be flexible enough to shift focus as business needs change. 

Location: Torrance, CA (Onsite)

Responsibilities:

Infrastructure and Cybersecurity Responsibilities (70-80%) 
  • Monitor, administer, maintain, and troubleshoot on-prem environment, including Active Directory, GPOs, File and Print services (PaperCut), Active Directory Certificate Services (AD CS), NPS/RADIUS, Windows Server 2016–2025, Hyper-V cluster, and Veeam backups
  • Monitor, administer, maintain, and troubleshoot cloud environment, including Azure Government IaaS, Entra ID, SharePoint, and other Microsoft 365 GCC High applications 
  • Administer and optimize workloads hosted in Azure Government, including Azure Virtual Desktop, virtual networking, and site-to-site VPN connectivity
  • Assist efforts to migrate local file storage to SharePoint  
  • Responsible for local and cloud Server and Application performance 
  • Manage endpoints through Intune, including Settings Catalog configuration, compliance policies, and remediation scripts for hybrid-joined devices
  • Use NinjaOne RMM for patch management, scripting, and remote support
  • Administer endpoint security, including CrowdStrike Falcon EDR and BitLocker encryption
  • Support engineering and lab applications, including MATLAB, Zemax OpticStudio, OceanView, SolidWorks, and IBM DOORS, along with their license servers
  • Analyze, diagnose, isolate, and identify system problems. Create short-term solutions to alleviate problem symptoms. Identify root causes and create and/or execute long term remediation plans
  • Conduct implementations that include configuring, installing, and updating servers and applications based on standards 
  • Participate in systems planning and help develop Systems roadmap 
  • Contribute to systems maintenance efforts and perform system hardening 
  • Plan and perform Windows Server lifecycle work, including in-place upgrades and post-upgrade validation
  • Responsible for monitoring and maintaining NetApp storage, Dell servers (including iDRAC out-of-band management), UPS/power systems, and other appliances at the data center
  • Work closely with MSSP to continually monitor and analyze system activity to identify malicious activity
  • Triage and respond to security alerts from CrowdStrike Falcon, the MSSP, and Microsoft 365/Entra ID. Take containment actions such as isolating hosts, disabling accounts, and revoking sessions, following the incident response plan
  • Document and escalate incidents (including event’s history, status, and potential impact for further action) that may cause ongoing and immediate environmental impact
  • Implement and maintain DISA STIG baselines and validate them with SCAP scans. Maintain the System Security Plan (SSP) and Plan of Action and Milestones (POA&M) for vulnerabilities identified during risk assessments, audits, and inspections 
  • Collect and maintain evidence for CMMC Level 2 assessments, including in Vanta
  • Document security implementations and support ongoing compliance with IT security policies and configuration guidelines
 
Helpdesk Support Tier II & III (20-30%) 
  • Serve as Tier II/III support for helpdesk tickets, stepping into Tier I when needed.
  • Work closely with Tier I to resolve issues and train in new technologies
  • Follow and maintain technical documentation, procedures, and policies, and suggest improvements.
  • Mentor junior members of the team 
  • Perform other tasks as assigned by management 

Requirements:
  • 5+ years of progressive experience administering enterprise Windows Server and Microsoft Azure environments
  • Skilled in Active Directory, GPO, Windows Servers, PowerShell Scripting, DNS, and Veeam 
  • Experience with Entra ID, Conditional Access, Intune, SharePoint, Exchange Online, Microsoft 365, general storage, Veeam and Server technologies  
  • Microsoft certifications such as AZ-104, AZ-500, SC-300, or MD-102, or CompTIA Security+, a plus 
  • Cybersecurity such as SIEM, Intune, Entra Conditional Access, and MFA experience a plus 
  • Experience with Linux (Ubuntu), an ITSM ticketing platform, and documenting procedures in a shared knowledge base such as Notion a plus
  • Experience administering and governing enterprise AI tools a plus
  • Team player, proactive, reliable, and self-motivated individual who is always striving to optimize and automate 
  • Available for planned support and/or emergencies 24x7 
  • Working knowledge of NIST SP 800-171, CMMC Level 2, and CUI handling requirements under DFARS 252.204-7012 (NIST SP 800-53 familiarity a plus) 
  • Experience with Azure Government or Microsoft GCC High environments preferred
  • This position requires U.S. citizenship and the ability to obtain and maintain a U.S. Government security clearance

Compensation: $99,000 - $129,000 (Base salary for this position will vary based on your skills, qualifications, and experience)

REQ. #26053
 

Benefits:

  • 4 Weeks PTO a year (including 40 hours of PTO your first day)
  • 10 paid holidays
  • 401(k) with 100% employer matching up to 5% of salary (no vesting period)
  • Multiple options for Medical, Vision, Dental Insurance plans
  • Health Savings Accounts
  • Flexible Spending Accounts
  • Tuition Assistance (30% of Tuition with a minimum qualifying grade)
  • 100% Paid Employee Assistance Program (EAP)
  • 100% Paid Basic Life and AD&D Insurance
  • 100% Paid Workers Compensation Insurance
  • Voluntary Life Insurance


The unique culture at Intellisense offers the entrepreneurial spirit of a smaller company with the support and expertise of a larger organization. We are looking for individuals that have a wide breadth of experience while also being subject matter experts in their respective field.


If you require reasonable accommodation in completing this application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please contact us by phone at (310) 320-1827 or by email at hrsupport@intellisenseinc.com


Unless otherwise stated in the requirements section of an individual job listing, our positions require U.S. Citizenship, U.S. Permanent Residency, or other status as a U.S. Person as defined by 8 USC 1324b(a)(3). Intellisense Systems, Inc is an Equal Employment Opportunity (EEO) employer and welcomes all qualified applicants. Applicants will receive fair and impartial consideration without regard to race, sex, color, religion, national origin, age, disability, veteran status, genetic data, or other legally protected status.


You will receive text messages regarding your application and potentially regarding interview scheduling. Message frequency will vary depending on the application process. Msg & data rates may apply. OPT out at any time by texting “STOP”.

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